Tesla (NASDAQ: TSLA) shares were volatile mid-day Tuesday after traders took notice that the company stretched out the delivery promise for the Model 3. The change on its website notes new Model 3 reservations will be delivered in mid 2018 or later. Prior delivery estimates were 2017.

In an e-mail to StreetInsider.com, Tesla said the update doesn’t reflect any change in its plans and they still plan to begin Model 3 deliveries in 2017.